Johnson Holmquist Equation of State

In solid mechanics, the Johnson-Holmquist Equation of state is used to model the behaviour of ceramics. What makes ceramics unique is that the have high compressive strength but low tensile strength. As such they are comparatively better than metals on the basis of weight.^[1]

Additional recommended knowledge

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Correct Test Weight Handling Guide: 12 Practical Tips

Daily Sensitivity Test

Johnson-Holmquist Equation of State

Implementation in LS-DYNA

The Johnson-Holmquist Equation of State is implemented in LS-DYNA as * MAT_JOHNSON_HOLMQUIST_CERAMICS

References

• ^ 1.Walker, James D. “Turning Bullets into Baseballs” SwRI Technology Today, Spring 1998